Core cap



Dec. 16, 1941. A. G. ADAMS l CORE CAP Filed May 13, v1941 f INVENTORAGENT Patented Dec. 16, 1941 CORE CAP Archibald George Adams, ThreeRivers, Quebec,

Canada, assignor to International Paper Company New York, N. Y., acorporation of New York Application May 13, 1941, SerialNo. 393,179

In Canada May 14,1940v Claims.

This invention relates to new and useful improvements in core caps andparaticularly seeks to provide novel reinforcing means associated withthe driving stud-receiving recesses of core caps generally similar tothose of the type disclosed in U. S. Letters Patent 1,358,531, grantedNovember 9, 1920 to P. T. Dodge.

Core caps of the type to which this invention relates generally comprisespaced inner and outer concentric sleeves connected aty one end by anintegral spacing rim or annulus. Normally, a portion of the inner sleeveis pressed or swaged outwardly to define a channel or recess adapted toreceive the driving stud or like element of paper roll handlingmechanisms in connection with which the cores are employed.

It is therefore an object of this invention to provide in a core cap ofthe type referred to, means for substantially reinforcing the wallswhich define the stud-receiving recess.

Another object of this invention is to provide a core cap of thecharacter described in which the reinforcing means comprises areinforcing'strip having its central portion fitted between the outerwall defining said stud-receiving recess and the opposing inner surfaceof the outer sleeve, and including side portions extending inwardly fromthe central portion and disposed in reinforcing engagement with the sidewalls which define said recess, the side portions terminating inlaterally projecting portions disposed in contact with the outer surfaceof the inner sleeve on opposite sides of the recess defining walls.

Another object of this invention is to provide a core cap of thecharacter described which is simple in design, rugged in constructionand economical to manufacture,

With these and other objects in view, the nature of which will becomemore apparent, the invention will be more fully understood by referenceto the drawing, the accompanying detailed description, and the appendedclaims.

In the drawing:

Fig. 1 is a side elevation of a core cap constructed in accordance withthis invention;

Fig. 2 is a transverse vertical section taken along line 2-2 of Fig. 1;

Fig. 3 is a horizontal section taken along line 3-3 of Fig. 1; and

Fig. 4 is a horizontal section generally similar to Fig. 3 butillustrating a modification of the reinforcing means.

Referring more particularly to the drawing, 5 designates a core capcomprising an inner sleeve 6, an outer sleeve l, and an integral rim 855 connecting said sleeves at one end thereof. A portion of `the innersleeve 6 is pressed outwardly` to provideV a recess adapted to receive adriving stud' or lthe like and bounded by side walls 9, an outer wallIII and an'inner-end wall I I.

The distinctive feature of the present invention resides in theprovision of novel means for reinforcing and strengthening the definingwalls of the recess formedr by the outwardly pressed portion of sleeveV6. The reinforcing means is generally indicated at I2f. In itspreferred embodiment it comprises a bent strip of flat sheet metalincludingV a central portion I4- fitted between the Y outer wall I0 ofthe recess and the opposing inner surface of sleeve 1, side portions I 5extending inwardly from the central portion I4 and disposed inreinforcing engagement with the recess walls 9, and curved terminalportions I6 disposed in contact with portions of the sleeve 6 lying atopposite sides of the recess. The reinforcing element as a whole may bewelded or otherwise secured in place. In securing the reinforcingelement in place the central portion I4 is preferably welded orotherwise secured to both the sleeve I and the recess wall I 0, theterminal portions I6 of the reinforcing element being welded orotherwise secured to the sleeve 6. -When made of sheet metal asdescribed herein the reinforcing element may be easily and quicklyfabricated and Ysecured in its proper position between the inner andouter sleeves. It will also be noted that with the constructiondescribed herein the side walls 9 of the recess are backed up andreinforced by relatively thin flat reinforcing elements (the sideportions I5 of reinforcing element I2) which eX- tend transverselyacross the annular space between the sleeves 6 and 'I and are rmlyanchored to both sleeves.

In Fig. 4 of the drawing there is illustrated a modified form ofreinforcing element which may be employed whenever it is found necessaryto more strongly reinforce the stud-receiving recess. To this end, theupper edge portions of the reinforcing strip I 2 which are disposedadjacent the rim 8 are provided with outwardly projecting ear extensionsI'I. The ears II are disposed in substantially flat contact with theinner surface of the rim 8 and are welded or -otherwise secured theretoto thereby provide the desired increase in strength and rigidity to theapplied reinforcing strip I2.

It is of course to be understood that certain details of Varrangementand proportions of parts may be variously modified without exceeding thescope of the appended claims.

I claim:

1. A core cap comprising inner and outer concentric sleeves, an integralrim connecting said sleeves at one end thereof, a portion of the innersleeve being pressed outwardly to provide a recess bounded by sidewalls, an outer wall and an inner end wall and a reinforcing striphaving its central portion tted between the outer Wall of said recessand the opposing inner surface of said outer sleeve, side portionsextending inwardly from said central portion and disposed in reinforcingengagement with said side walls.

2. A core cap comprising inner and outer concentric sleeves, an integralrim connecting said sleeves at one end thereof, a portion of the innersleeve being pressed outwardly to provide a recess bounded by sidewalls, an outer wall and an inner end wall and a reinforcing memberhaving its central portion secured to the outer wall of said recess andthe opposing inner surface oi said outer sleeve, Side portions extendinginwardly from said central portion and disposed in reinforcingengagement with said side walls.

3. A core cap comprising inner and outer concentric sleeves, an integralrim connecting said sleeves, at one end thereof, a portion of the innersleeve being pressed outwardly to provide a recess bounded by sidewalls, an outer wall and an inner end wall and a reinforcing strip bentto provide a central portion tted between the outer Wall of said recessand the opposing inner surface of said outer sleeve, Side portionsextending inwardly from said central portion and disposed in reinforcingengagement with said side walls, and curved terminal portions disposedin contact with the outer surface of said inner sleeve at opposite sidesof said recess.

4. A core cap as claimed in claim 3 having the central portion of saidstrip welded or otherwise secured to the outer wall of said recess.

K 5. A core cap as claimed in claim 3 having the central portion of saidstrip welded or otherwise 4secured to the inner surface of said outersleeve.

6. A core cap as claimed in claim 3 having the central portion of saidstrip welded or otherwise secured to the outer wall of said recess andthe opposing surface of said outer sleeve.

7. A core cap as claimed in claim 3 having the terminal portions of saidstrip welded or other- Wise secured to the outer surface of said innersleeve.

8. A core cap as claimed in claim 3 having the central portions of saidstrip welded or other- Wise secured to the outer wall of said recess,and the terminal portions of said strip welded or otherwise secured tothe outer surface of said inner sleeve.

9. A core cap as claimed in claim 3 having the reinforcing strip weldedor otherwise secured to the outer surface of said inner sleeve and saidrecess.

10. A core cap as set forth in claim 1, in which the side portions ofthe reinforcing strip are provided with laterally projecting extensionsengaging the inner side of said rim.

ARCHIBALD GEORGE ADAMS.

